Some would say that the pagan religions are non-theological.
If by this we mean that pagan religions tend not to have 'systematic' theologies, I would agree.
But I prefer to think that we're just differently theological.
Drawing on the word's original meaning (theos, 'a god' + logos, 'word') theologian David Miller defines theology as 'thinking and talking about the gods.' (Miller's 1974 The New Polytheism: Rebirth of the Gods and Goddesses was a pioneering work of contemporary polytheist thought.)
No system required, no seminaries involved. Thinking and talking about the gods.
That's something that pagans do all the time.